Removal of Zinc(II) from municipal wastewater using chemically modified activated carbon developed from Rice husk and Kikar charcoal

Asadullah Baloch, Zahid N. Qaisrani, Ibrar Zahid1, Shah Hussain, Ali Nawaz Mengal, Syed Kamran Sami, Muhammad Amin, Mohammad siddique, Syed Haseeb Sultan

Abstract


Heavy metals in municipal wastewater are of utmost concern for researchers and environmental agencies due to their adverse effect to the ecosystem. Various technologies were practiced for the removal of heavy metals; however, adsorption is one the most interesting technique for its low cost, simple operation and reasonable efficiency. In this study, removal of Zinc (II) from municipal wastewater in Quetta city of Pakistan was investigated by using activated carbon (AC) developed from Rice Husk (RH) and Kikar Charcoal (KC). Char were made by heating KC and RH in a tubular reactor at 700 oC under N2 gas flow. Furthermore, Char material obtained were activated using H2SO4 as an activating agent to increase the surface area and porosity of the char materials. The biochar adsorbents were characterized using SEM, EDX and BET techniques. To identify the efficiency of adsorbents, the wastewater samples collected from Shahbaz town area of Quetta city were treated using different particle size of AC (180 and 300 µm) and varying adsorbate dose (0.1, 0.2, 0.3, 0.4, 0.5, 0.6 and 0.7 g/50 mL), pH of the solution (3, 4, 5, 6, 7), respectively. The results showed that increase in the mass of adsorbents had a direct relation with the removal efficiency of Zn(II). The maximum removal efficiency for zinc (II) was found to be 99 % and 72.34 % for KC and RH based ACs at adsorbent dose 0.7 g/50mL and pH 6, respectively. A small difference has been observed between the efficiencies of both ACs this was due to the difference between their surface area and porosity. While studying isotherm models the data was best fit with Langmuir isotherm model. The amount of zinc in the treated wastewater was recorded well enough under the standard limits provided by Environmental protection agency (EPA). This technique of treating municipal wastewater by using inexpensive biomass as adsorbent found to be very efficient and environmental friendly.

Keywords


Activated carbon; Adsorption; Kikar Charcoal; Rice Husk; Ecosystem

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References


N. K. Srivastava and C. B. Majumder, “Novel biofiltration methods for the treatment of heavy metals from industrial wastewater,” J. Hazard. Mater., vol. 151, no. 1, pp. 1–8, 2008.

A. Celik and A. Demirbas, “Removal of heavy metal ions from aqueous solutions via adsorption onto modified lignin from pulping wastes,” Energy Sources, vol. 27, pp. 1167–1177, 2005.

S. A. Chaudhry, T. A. Khan, and I. Ali, “Adsorptive removal of Pb(II) and Zn(II) from water onto manganese oxide-coated sand: Isotherm, thermodynamic and kinetic studies,” Egypt. J. Basic Appl. Sci., vol. 3, no. 3, pp. 287–300, 2016.

S. S. Ahluwalia and D. Goyal, “Removal of heavy metals by waste tea leaves from aqueous solution,” Eng. Life Sci., vol. 5, no. 2, pp. 158–162, 2005.

F. Fu and Q. Wang, “Removal of heavy metal ions from wastewaters: A review,” J. Environ. Manage., vol. 92, no. 3, pp. 407–418, 2011.

J. M. Dias, M. C. . Alvim-Ferraz, M. F. Almeida, J. Rivera-Utrilla, and M. S. Nchez-Polo, “Waste materials for activated carbon preparation and its use in aqueous-phase treatment: A review,” J. Environ. Manag., vol. 85, pp. 833–846, 2007.

A. Kongsuwan, P. Patnukao, and P. Pavasant, “Binary component sorption of Cu(II) and Pb(II) with activated carbon from Eucalyptus camaldulensis Dehn bark,” J. Ind. Eng. Chem., vol. 15, no. 4, pp. 465–470, 2009.

D. Sud, G. Mahajan, and M. P. Kaur, “Agricultural waste material as potential adsorbent for sequestering heavy metal ions from aqueous solutions - A review,” Bioresour. Technol., vol. 99, no. 14, pp. 6017–6027, 2008.

M. Iqbal, A. Saeed, and N. Akhtar, “Petiolar felt-sheath of palm: A new biosorbent for the removal of heavy metals from contaminated water,” Bioresour. Technol., vol. 81, no. 2, pp. 151–153, 2002.

K. Seki, N. Saito, and M. Aoyama, “Removal of heavy metal ions from solutions by coniferous barks,” Wood Sci. Technol., vol. 31, no. 6, pp. 441–447, 1997.

S. Babel and T. A. Kurniawan, “Low-cost adsorbents for heavy metals uptake from contaminated water: a review.,” J. Hazard. Mater., vol. 97, no. 1–3, pp. 219–243, 2003.

M. Rao and A. V. Parwate, “Utilization of low-cost adsorbents for the removal of heavy metals from wastewater – a review.,” J. Environ. Pollut. Control, vol. 5, pp. 12–23, 2002.

A. Tripathi and M. Rawat Ranjan, “Heavy Metal Removal from Wastewater Using Low Cost Adsorbents,” J. Bioremediation Biodegrad., vol. 06, no. 06, 2015.

S. Chandrasekhar, K. G. Satyanarayana, P. N. Pramada, P. Raghavan, and T. N. Gupta, “Review Processing, properties and applications of reactive silica from rice husk—an overview,” J. Mater. Sci., vol. 38, no. 15, pp. 3159–3168, 2003.

Ministry of Finanace, “Chapter 2: Agriculture,” Islamabad, 2016.

T. G. Chuah, A. Jumasiah, I. Azni, S. Katayon, and S. Y. T. Choong, “Rice husk as a potentially low-cost biosorbent for heavy metal and dye removal: an overview,” Desalination, vol. 175, pp. 305–316, 2005.

I. A. Rehman and J. Ismail, “Preparation and characterization of a spherical gel from a low cost material,” J. Mater. Chem., vol. 3, pp. 931–934, 1993.

B. Kyalangalilwa, J. S. Boatwright, B. H. Daru, O. Maurin, and M. van der Bank, “Phylogenetic position and revised classification of Acacia s.l. (Fabaceae: Mimosoideae) in Africa, including new combinations in Vachellia and Senegalia,” Bot. J. Linn. Soc., vol. 172, no. 4, pp. 500–523, 2013.

U. B. Cheema, J. I. Sultan, A. Javaid, P. Akhtar, and M. Shahid, “Chemical composition, mineral profile and in situ digestion kinetics of fodder leaves of four native trees,” Pakistan J. Bot., vol. 43, no. 1, pp. 397–404, 2011.

ECN, “wood, kikar (acacia) (#1460),” 1999. .

I. Zahid et al., “Municipal Wastewater Treatment Using Rice Husk and Kikar Charcoal as Activated Carbon,” Int. Res. Symp. Eng. Adv., vol. 2016, no. January, pp. 56–59, 2016.

S. P. Mishra, D. Tiwari, and R. S. Dubey, “The uptake behaviour of rice (Jaya) husk in the removal of Zn(II) ions - A radiotracer study,” Appl. Radiat. Isot., vol. 48, no. 7, pp. 877–882, 1997.

Asadullah, L. Kaewsichan, and K. Tohdee, “Prospective Sorption Evaluation of Hydrothermally Carbonized Lepironia articulata ( Grey sedge ) for the Removal of Ni ( II ) from Aqueous Solution,” Chiang Mai J. Sci, vol. 45, no. 5, pp. 2220–2231, 2018.




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